Manhunt 1 and Manhunt 2 had the most realistic animations and sounds when it game to violence. In both games you could see the victims struggle intensely when being killed. It must have been hard for Cash, Danny and Leo when they were killing their victims, although Danny seemed to have the most difficulty when it came to restraining his victims, while admittedly I think Leo actually did the best job out of the 3 protagonists when it came to subduing the victim. Cash definitely was better at killing than Danny was, but not quite as good as Leo. I doubt the majority of people would are capable of pulling off any of the stuff that any of the protagonists have pulled off without it turning into a massive fight though, it is actually really hard to kill someone who is actually resisting, even if armed with a weapon, so I bet even Danny is far more capable than about 99% of people when it comes to killing someone.

Sneak up behind somebody with a paper bag. Strangle them, brutally punch them in the face and then snapping their neck to top it off. With a crowbar you can jab it in their spine and as they fall, it's shoved in their head. Exactly how is Call of Duty gory? The only gory one was World at War. - ViitalShadow

Modern Warfare only has a tiny red pixel every shot, this is the real bloodthirsty loco action, baby!

This game is so violent it make mortal kombat and god of war look like a barbie game in comparison.